Shackle bolt



Patented Jan. 8, 1924.

LLOYD BLA-Cimone; ori nGHLAivij PARK, MIcHIGAn, A s'srenon 'o' l.; coRroRATrn, F? DTROI'T, MCHSIGAN', Az CORPORATION. or DELAWARE- j SGKLE BOLT.

To all fw 7mm t may concern:

Beit known that-` I, LLoYD B'rAoIiMoRn-,a Citizen ofthe United States, and` a. resident of Highland Park, county of VVa-yne,y andy State of hichiga'n,v have invented. certain new and useful Improvements in Shackle Bolts, of which the following'is a full', clear7 concise, and exact; description,- such as will enable others .skilled in the art to which the by; although bolts-made` in accordance withr myinvention are equallyv capable or use in otherV rela-tions, andffin fact in any situation '25?- whereV a shackle*Y or equivalent' bolt having lubricating; means associated therewith, is necessary or desirable.- f`

The object ofl my invention is tof pro'- v-ide an improved combined-shackle bolt and.v lubricating.` device therefor',y or1 shacklebolt having lubricating means incorporatedtherewithV or.y thereinto,- and inr` which the passage through which oil issupplied'fto the peripheralI surface thereof and to' the bea-r-- 352- ing between said surface and thepart supported -willf be` automatic ally, kept openvwhenthe device is inuse, so that the lubri'cating functionv will1 not be, interfered. with by theT clogging ofthe said passage; which. is a 4 shackle boltsat present in use and which results in excessive wear between 'the parts, and in squeaking. and other objectlonable noises` at. the spring shackles of motor ve-l hicles;

The drawing a( :companying` and. forming a partV .of this application illustrates. the preferred form. ofl my` invention; although my invention may be embodied; in other 5 includeslall -such variations andT modifications of theparticular formfshown as come within the scope of the concluding claims,. wherein the distinguishing features of'` my invention areparticularl-y pointed out.

fault frequently present in lubricated` forms .the` equivalent ofthe formshowm and. supported. thereby:

In the'drawi-ng: .I Y v Figure 1l' isa. fragr'nent'ary perspectiveview' showing:y two of Tiny. in'ipr'o'veohY shackle bolts'used in'. the spring suspensionI s'y'sterI ofa motor d'riven.vehicle.- v

Figure 2P is" a 'view showing myl invention; in section' upon` a longitudinah centrali plane thecover ofthe oilcup being. closed:`

F igureV 3' isa similarview showing the't cover' open', so that oil may be supplied to the oil cup and tovtliei'nterior. passage entending alongv theboltf.-

Figures L andi 5' arci fragmentary. views showing; a modified form of: my invention.. y v lReferringv now to-the drawing, thereferlf Tf? ence numeral 51 designates a portion-ofV` one'v of the two longitudinally extending frame bars; 6 anend of' one of a' plurality of* springs wherebyy thef-rame and the body carried thereby are supportedifronrthe axles of thel vehicle ;v andf; 7- twvoaslfackle4` links-.tire`- lower ends of which'a-reeonnecterlewiththe. spring; end by. one of my'irnpro'ved shackle` bolts,` and the upper` ends ofrwhicha are*v con-f nected with a-bracketf. 8 secured to: thezfranie Soi member by* another-y bolt. l Fixtendingbetween the' upper ends ofthe linksisfa sleeve 9- which may beintegrah wit-hqthe lin-ks: or separate therefrom@ andi theffreey end 10 o thel spring'` is commonly`v curledato'forniI an; 85' eye or tube whichextends? between.- the `lowerl en'dsof the-links, and-may or notcon.-Y traina bushinginfimmediate oon-tacty with the; peripheral surfaceof the lcmer..4 shackle: bolt. l.

The referencenumeral 1.1. designates my n improved' shackle bolt, thel saine;y extending" through the endsof the shackle links'z and; through the spacingfsleeve 9 vorI spring eye- 10', and having a. head 'l2 at; oneendk and. a nutlvat'the other,as.will be understood- This boltl is, provided. with; ani interna-l lon-v` gitudin ally extending passageA Maand` with a slot: l5 lea'din froi'n said` passage tot-he.` peripheral surface thereof and through.which'` oil'fromthe passage issupplied to the bear?. ing: between said's peripheralsurface and the interior of, the sleeve,r sprinfgtreye, hn-s'hin'es` or other element .surround-ing. said bolt. andi Communicating: witlitliepassage 14 is-`r oi'l cup 1'6,ma'de vpreferably,separate from.l the shackle bolt. proper;- 113;, and'showvn4 as. having aithreadediportionat.,theend,ofz said passage la, as indicatedatfl? flzlie epe'riend.'r 11K-q 18 vof this oil cup is in a plane which is approximately parallel with the axis of the bolt, and yone which is substantially horizontal when the device is in use; and said .open end is closed by a swinging cover 19 pivotally connected with the body of the oil cup as by a hinge connection at 20.

The reference numeral 21 designates a reciprocating slot cleaning member located within the passage 14 and movable along the same; the outer end of said member being connected with the cover 19 so that it will be moved along the passage 14 as the cover is opened and closed, and the inner end thereof terminating adjacent the slot or groove 15 so that it will move along the same at such times, and break up and scrape away such hard deposit of contaminated lubricating material as may have accumulated at the slot and which acts to interfere with the free flow of oil through the slot and to the bearing at the peripheral surface of the bolt. This slot cleaning member is shown as made from a piece of wire curved in form and the middle portion of which rests against the interior of the passage 14 opposite the slot 15, so that the inherent resilience of the wirel will keep the hooked end 22 thereof within the said slot; along which it moves as the cover is raised and lowered, as will be appreciated. The outer end of the wire 21 is conveniently fastened to the cover by forming a struck-up loop or eye 23 from the .metal thereof, and hooking the end of the wire through the loop as shown.

In view of the premises it will be appreciated that the inner free end of the slot cleaning member will move along the slot 15 each time the cover 19 is raised to replenishl the supply of oil within the oil cup and passage 14 in the shackle bolt, and again as the cover' is returned to its normally closed position; thus keeping' thevpassage through which oilflows to the bearing to be oiled open without special attention on the part of the user of the device.

In the form Iof my invention illustrated in Figures 4 and 5 the cover 19 is provided with anieXtended arm 24 to which the outer end of the spring 21 yis connected,so that as the cover is raised said arm will be swung from the position shown in Figure 4 into the position shown in Figure 5. The point of pivotal connection 25 between the cleaninginember 21 and the arm 24 is located about in line with the arm and cleaning member when the cover is closed, or slightly past such a line; so that when the cover is closed any upward force exerted by the wire 21 -due to its resiliency will tend to keep the cover in a closed position; which is a feature of advantage under some circumstances. It is obvious, however, that the cleaning wire when in the position illustrated in Figure 2 will exert little 4or no forcetending to open the cover .19; as it will be appreciated that the said wire kbears against `the interior of the oil cup 16 at the point :26, and is bent about said point of con tact as the cover is opened. This contact, however, between the wire and interior of the*oil cup is a feature which is not essential to the operation of my invention, asl the free end 22 of the wire will obviously be with the peripheral surface of the bolt; an.

oil cup communicating with said passage and through which oil may be supplied thereto; a cover pivotally connected with said oil cup for closing the same; and acurved and resilient reciprocating cleaningwire operating within said passageand the middle portion of which contacts with the interior thereof opposite said slot, one end of said wire being pivotally connected withl said cover so as to be operated thereby and the other end thereof being held in place within said slot by the resilience of said wire, and which last mentioned end moves along said slot as said cover is operated.

2. A shackle bolt having a passage exi tending longitudinally thereof, and a slot through which said passage communicates` with the peripheral surface of the bolt; an oil cup communicating with said passage and through which oil may loe supplied.

thereto; a cover pivotally connected4 with said yoil cup for closing the saine; anda curved reciprocatingcleaning member oper.

ating within said passage and the middle portion of which contacts with the interiorthereof opposite said slot, one end of saidl member being permanently connectedwith said cover so as to be operated thereby and the free end of which' member extends into and moves along the slot aforesaid when said cover is operated.

3. Aishackle bolt having a passage eX- tendingF longitudinally thereof, and a slot through which said passage communicatesl with the peripheral surface of the bolt; van z oil cup communicating with said passage and having an inlet opening disposedy in a i substantially horizontal plane when the de vice fis in use; a cover pivotally connectedl with said oil cup and adapted to close the opening aforesaid leading thereinto; `and a reciprocating cleaning member one end ofy which permanently connected to said cover so as to be operated thereby, and which member extends along said passage and into the slot aforesaid, and moves along said Lslot as said cover is opened and closed.

4. A shackle bolt having a passage extending longitudinally thereof, and a slot through which said passage communicates with the peripheral surface of the bolt; an oil cup communicating with said passage and having an inlet opening disposed in a substantially horizontal plane When the device is in use; a cover hinged to said oil cup and adapted to close the opening aforesaid leading thereinto; and a reciprocating clean-y ing member vpermanently connected With said cover and extending alongsaid passage,

and having a portion which moves along' said slot When said cover is opened and closed.

- 5. A shackle bolt having a passage extending longitudinally thereof, -and a slot through which said passage communicates with the peripheral surface of the bolt; an oil cup communicating with said passage and having an inlet opening disposed in a plane Which'is substantially parallel with the axis of said bolt; a cover hinged to said oil cup and adapted to close the opening aforesaid leading thereinto; a reciprocating cleaning member pivotallyv connected with and Voperl the slot aforesaid.; and means for holding said portion in place Within said slot as said cover is opened and closed.

6. A shackle bolt having a passage extending longitudinally thereof, and a slot through which said passage communicatesy with the lperipheral surface of the bolt; an

oil cup communicating with said passage and having an inlet opening disposed in a plane which is substantially parallel with the axis of said bolt; a cover hinged to said oil cup and adapted to close the opening l aforesaid lleading thereinto; and a resilient reciprocating cleaning Wire extending along said passage and one end of which is permanently connected with said cover so as to be operated thereby; said Wire being curved in form and the middle portion thereof contacting Withthe interior of said passage, and

the other end thereof extending into and moving along the slotvafore'said'as said cover is opened and closed. y n

In testimony thereof I aix my signature.`

LLOYD BLAGKMORE. 

